EP3186858B1 - Connecteur électrique - Google Patents

Connecteur électrique Download PDF

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Publication number
EP3186858B1
EP3186858B1 EP15744585.9A EP15744585A EP3186858B1 EP 3186858 B1 EP3186858 B1 EP 3186858B1 EP 15744585 A EP15744585 A EP 15744585A EP 3186858 B1 EP3186858 B1 EP 3186858B1
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EP
European Patent Office
Prior art keywords
section
contact
latching
plug
locking element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP15744585.9A
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German (de)
English (en)
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EP3186858A1 (fr
Inventor
Zhenyu Hu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP3186858A1 publication Critical patent/EP3186858A1/fr
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • H01R13/428—Securing in a demountable manner by resilient locking means on the contact members; by locking means on resilient contact members
    • H01R13/432—Securing in a demountable manner by resilient locking means on the contact members; by locking means on resilient contact members by stamped-out resilient tongue snapping behind shoulder in base or case

Definitions

  • cables In the field of technology, e.g. in automotive engineering, it is often necessary to connect electrical cables together. For example, cables must be connected to each other or connected to electrical devices.
  • Connectors are often used for this purpose, in which one or more contact chambers are provided in a connector housing.
  • a contact element connected to an electrical line is arranged in each of the contact chambers and locked therein.
  • the contact element is designed to produce an electrically conductive connection with a correspondingly configured mating contact element of a mating connector or a socket as soon as the connector is plugged together with the mating connector or the socket.
  • the contact elements In the manufacture of such connectors, the contact elements, to which the associated cables are crimped at the rear end, are pushed into the individual contact chambers. In order to prevent the contact elements from slipping out of the contact chambers, for example when the cables are pulled, the contact elements are usually locked in a form-fitting manner in the contact chambers. In a frequently used configuration of the contact elements, an outwardly projecting and inwardly deflectable latching element or a latching lance is provided on the housing of the contact element for this purpose. This latching element protrudes obliquely outward beyond the housing of the contact element against an insertion direction of the contact element into the contact chamber. When the contact element is inserted into the contact chamber, the latching element is first elastically deformed inward, and then when it reaches its target position in a To snap recess (a locking chamber) in the contact chamber to thereby lock the contact element in the contact chamber.
  • a To snap recess a locking chamber
  • the invention is based on the finding that high mechanical demands are placed on connectors and the contact elements used therein, in particular for use in motor vehicles.
  • the locking of the contact elements within the contact chambers of the plug connector should be as stable as possible in order to avoid tearing out of the contact elements when, for example, pulling on crimped cables.
  • the locking element should generally be as rigid as possible.
  • the latching element should deflect elastically as lightly as possible and then be able to return to its starting position in the latching chamber in order to be able to lock a contact element in a contact chamber simply and reliably.
  • sealing mats made of an elastic material are often arranged, through which the contact elements are inserted when inserted into the contact chambers. If it is necessary to remove one or more contact elements from the respective contact chamber, for example for maintenance purposes, or because when the connector was inserted, the contact element was inserted into an incorrect contact chamber, there is a risk that the latching element, which protrudes obliquely outwards against the insertion direction, or the locking lance damaged the sealing mat and in this way the Sealing function is restricted.
  • a first section can be provided in a cantilevered end region of the latching element, which protrudes outwards from the housing against the direction of insertion, and a second section which is bent inwards relative to the first section, so that a sharp-edged end of the latching element protrudes outwards is avoided.
  • the sliding process of the second section can also be facilitated in that the second section continues to move towards the first section (possibly even plastically) ) bends, whereby the sliding surface of the second section is always aligned approximately parallel to the latch chamber wall.
  • a contact element for insertion in a direction of insertion into a contact chamber of a connector which has a reduced risk of the locking element sliding in the locking chamber when force is exerted on the locking element and, at the same time, the risk when the contact element is removed from the contact chamber one Damage to a mat seal or a sealing mat is greatly reduced.
  • bending of the latching element or bending of components of the latching element in particular a (in particular plastic) bending of the latching element or parts of the latching element should be avoided by the invention or should be avoided by the invention
  • Such (plastic) bending process or breakage of components only occur when the force is increased compared to the prior art.
  • the contact element has a housing which extends along the insertion direction.
  • the contact element furthermore has a latching element which is connected to the housing, preferably firmly connected, for latching in the contact chamber of the connector.
  • the latching element has a cantilevered end region.
  • the cantilevered end region has a first section and a second section connected to the first section.
  • the second section immediately adjoins the first section.
  • the first section extends counter to the insertion direction or the first section points obliquely outwards away from the housing against the insertion direction.
  • the second section is bent inwards relative to the first section (e.g. pointing towards the housing of the contact element). It is provided according to the invention that at least one support element is provided between the first section and the second section, which supports the second section on the first section when a force is exerted on the latching element.
  • the contact element according to the invention has the advantage that when the locking element is subjected to a force, for example by pulling the cable connected to the contact element counter to the direction of insertion, the second section is stronger than the first only with increased effort compared to conventional locking elements Section can be bent. Because by means of the support element between the first section and the second section, the second section can be supported on the first section. In this way, the risk of deformation, in particular excessive deformation, of the latching element is also advantageously reduced. This in turn can reduce the risk of the locking element breaking.
  • the support element acts in two ways.
  • the support element prevents that when the locking element is subjected to a force, the locking element pivoting outward in the locking chamber can slide particularly easily along the chamber wall of the locking chamber.
  • the second section can bend such that it is always aligned approximately parallel to the chamber wall of the latching chamber. In this way, a sliding process is facilitated by a large contact area with the chamber wall.
  • pressure force per surface
  • the second section can be supported on the first section by means of the support element.
  • the second section can no longer be bent essentially parallel to the chamber wall of the latching chamber.
  • a continuously decreasing surface of the second section is in contact with the chamber wall.
  • the pressure of the second section on the chamber wall increases in an advantageous manner in a contact element according to the invention.
  • the second section can literally dig into the chamber wall like a crampon, which makes it more difficult or even prevented for the latching element to pivot open further. In this way it is possible to prevent a critical opening angle from being exceeded, at which the latching element can break at its root, for example.
  • the torque acting on the latching element is reduced by the support by reducing the lever arm acting on the latching element.
  • a torque (T) acts on the locking element during a pull, for example against the direction of insertion.
  • the lever arm results here as a distance between the root of the locking element and the point of engagement of the locking element on the chamber wall of the locking chamber transversely to the direction of insertion.
  • the force is introduced into the latching element essentially at the end of the first section, that is to say in the transition region to the second section.
  • the second section can be supported on the first section by means of the at least one support element, the force is introduced into the latching element essentially at the point of contact of the second section with the chamber wall and via the support element.
  • the lever arm is reduced by a difference distance ⁇ R along the spring-open direction. The difference distance results from the distance from the transition point between the first and second section on the one hand to the contact point of the second section with the chamber wall of the latching chamber or the point of engagement of the support element on the first section.
  • the torque acting on the locking element is reduced by the contact element according to the invention.
  • the risk of damage to the locking element or breakage of the locking element for example at the root of the locking element, is significantly reduced compared to conventional locking elements.
  • the force that leads to damage to the locking element can be at least 30% higher than without a support element, preferably at least 60% higher.
  • the latching element can extend essentially counter to the direction of insertion and protrude obliquely beyond the housing. It can preferably be elastically reversibly deflectable inwards along a springing direction extending transversely to the insertion direction.
  • the latching element can be arranged or fastened to the housing on a latching element root, which lies on an end of the latching element facing away from the cantilevered end.
  • the cantilevered end region can be formed at a distance from the housing, in particular in the spring-open direction transverse to the insertion direction.
  • the cantilevered end region is preferably spaced from the housing, for example in a rest position without the application of force.
  • the latching element can be formed in one piece with the housing or with the contact element.
  • the locking element and / or the housing and / or the contact element can be made as a stamped and bent part from a thin sheet.
  • the second section can be produced from the first section by a bending process.
  • the second section advantageously has a length of at least 0.4 mm, preferably a length of at least 0.7 mm or at least 1.0 mm and very particularly preferably a length of at least 2 mm.
  • the second section has a maximum length of 5 mm, preferably a maximum of 3 mm and very particularly preferably a maximum of 2.5 mm.
  • the length of the second section can be at least 2.5 times a sheet thickness of a sheet from which the second section can be made, preferably at least 4 times the sheet thickness.
  • the sheet thickness can e.g. in the case of micro-contacts are between 0.05 mm and 0.4 mm, preferably 0.1 mm to 0.3 mm and very particularly preferably from 0.12 mm to 0.17 mm.
  • plate thicknesses greater than 0.4 mm can also be provided.
  • An end face of the first section which is e.g. is slightly curved, is not to be regarded as a second section in the context of this application.
  • the bending radius at the transition from the first section to the second section can preferably be at most 0.3 mm, very particularly preferably at most 0.1 mm.
  • the expression “transverse to the direction of insertion” can be understood to mean a direction essentially orthogonal to the direction of insertion.
  • the expression “transverse to the springing direction” can be understood to mean a direction essentially orthogonal to the springing direction.
  • an axis along the insertion direction, an axis along the spring-open direction and a lateral axis, which extends transversely to the insertion direction and transversely to the spring-up direction can form a Cartesian coordinate system of three mutually orthogonal axes.
  • outwards can be understood to mean a direction starting from the housing which points away from the housing transversely to the direction of insertion, for example along an axis parallel to the spring direction. Accordingly, the expression “inward” can denote a direction transverse to the direction of insertion toward the housing.
  • a locking element projecting obliquely outwards (in particular in the non-applied state) can be understood to mean that the locking element protrudes at an acute angle with respect to the direction of extension of the housing.
  • the latching element and the insertion direction can include an angle greater than 1 ° and less than 89 °, preferably an angle between 5 ° and 55 °, very particularly preferably an angle between 5 ° and 40 °.
  • a right angle and a direction of extension parallel to the direction of insertion do not fall under the term "oblique" in the context of this application.
  • the first section and the second section enclose an angle ⁇ , wherein the at least one support element is designed such that when a force, in particular a force acting against the insertion direction, on the latching element, the angle ⁇ can be reduced by at most 5 °, the second section is advantageously caused to bend particularly little when the latching element swings outwards as a result of a force along the chamber wall.
  • the above-described effects of the support element increasing the line pressure and reducing the lever arm
  • a certain flexibility of the second section compared to the first section can be maintained.
  • a plastic deformation of the second section compared to the first section can thereby be particularly advantageously avoided; it is then, for example, only elastically reversibly bent against the supporting element and then supported.
  • the second section can thus, for example, elastically reversibly spring back into its initial position with respect to the first section when the force is released and the locking element springs back inwards.
  • the angle ⁇ enclosed by the first section and the second section lies in a range between 45 ° and 75 °. This results in a particularly simple and inexpensive manufacture of the locking element. In addition, at such an angle between the first section and the second section, those described above occur particularly quickly Effects (crampon effect and reduction of the lever arm). At the same time, the sealing mat arranged in the connector is particularly effectively protected against damage in this angular range.
  • the at least one support element is formed in one piece with the latching element advantageously results in a particularly simple and inexpensive manufacture of the contact element.
  • the support element with its small dimensions can be produced particularly reliably, reliably and easily.
  • the at least one support element is connected to the first section, in particular firmly connected, and projects from the first section against the insertion direction or essentially against the insertion direction towards the second section.
  • the at least one support element can be connected to the second section, in particular fixedly connected, and project from the second section along the insertion direction or essentially along the insertion direction to the first section.
  • the fact that the at least one support element extends along the insertion direction or counter to the insertion direction results in a particularly efficient support. This is because the force is introduced from the second section onto the first section, at least at the beginning of the force, essentially parallel to a force acting on the latching element, for example caused by a pull on the cable of the contact element.
  • the direction of extension of the support element can e.g. in an undamaged idle state, e.g. can be determined immediately after the manufacturing process of the contact element or in the inserted state without the application of force.
  • the latching element is essentially flat.
  • the latching element has at least one side wall bent inwards towards the housing, the at least one side wall having at least one cutout in the first section.
  • the at least one support element is arranged on the at least one side wall.
  • the at least one support element is arranged in particular in the area of the at least one recess.
  • flat can be understood to mean a shape of the latching element which, with the exception of the at least one side wall and the second section, extends essentially along a flat surface. Due to the at least one side wall, which gives the latching element a profile when cut transversely to the longitudinal axis, which can correspond to the rotated and / or mirrored letter "L” or an upside down letter “U”, the latching element can advantageously have increased stability against plastic deformation.
  • the end face of the at least one side wall can face the housing of the contact element.
  • the latching element can be produced in a particularly simple and reliable manner without causing an undesirable bending of the second section, the first section, during the manufacturing process or the side wall comes as a result of overlaps of the side wall, the first section and / or the second section due to manufacturing tolerances.
  • the fact that the at least one support element is arranged on the at least one side wall advantageously has the effect that the introduction of force from the second section into the first section leads to a particularly greatly reduced lever arm. At the same time, the introduction of the force into the side wall can result in a particularly good distribution of force in the latching element as a result of the high moment of inertia of the at least one side wall.
  • the second section has a free end facing away from the first section, the at least one support element being arranged on the at least one side wall in such a way that when the locking element is subjected to a force, in particular when the force is applied along the direction of insertion, the supports the second section with its free end on at least one support element.
  • the at least one support element is designed as at least one tab projecting laterally from the second section transversely to the insertion direction.
  • the at least one tab is bent at least in sections in the direction of the insertion direction, in particular by 90 ° to 135 °. This advantageously results in a particularly simple manufacture of the contact element, the latching element and the support element.
  • the tab can come to rest under the first section and be largely covered by the first section.
  • manufacturing tolerances during the bending process of the tab can largely remain without any major effects on the supporting effect of the supporting element, since the overlap of the tab with the first section and thus the supporting effect is almost always present.
  • a resilient support can also be brought about by the bent tab, which makes it possible to move the second section elastically back to its starting position after the end of the force. Due to the bending process, the tab can advantageously lie flat against the first section and thus particularly effectively bring about a flat supporting effect.
  • the at least one tab has a free tab end, wherein when a force is applied to the latching element, in particular along the insertion direction, the free tab end is supported on an inside of the first section facing the housing, this advantageously has the effect that the power transmission from the second section on the first section over a larger area.
  • manufacturing tolerances during the bending process of the support element, that is to say the tab do not or only insignificantly impair the support effect, since the inside of the first section represents a relatively large area.
  • the latching element has a further section with a first width w1 along a lateral direction transverse to the insertion direction.
  • the first section is arranged between the further section and the second section.
  • the first is tapered Section towards the second section from the first width w1 to a second width w2 of the second section.
  • the second section and the tab along the lateral direction have an overall width w3 that is less than or equal to the first width w1.
  • This advantageously has the effect that, viewed along the insertion direction, the tab and the second section do not protrude laterally beyond the latching element.
  • This advantageously prevents damage to the sealing mat, for example, when the contact element is inserted or removed.
  • this advantageously has the effect that the tab acting as a supporting element can particularly effectively introduce the force into the first section, for example centrally in the first section. This prevents partial bending of the second section, for example on one side.
  • the first width w1 can be, for example, at least 0.3 mm, preferably at least 0.4 mm and very particularly preferably at least 0.8 mm.
  • the second width w2 can be, for example, at most 75% of the first width w1, preferably at most 50% of the first width and very particularly preferably at most 30% of the first width w1.
  • Fig. 1 shows a connector 100, which can be part of a plug connection to a mating connector.
  • the connector 100 can be used, for example, for the mechanical and electrical connection of a plurality of cables to one another or a cable harness to a control unit in a motor vehicle.
  • the connector 100 has an upper housing part 130 and a lower housing part 140, which can be mechanically connected to one another via latching tabs 150. Between the upper housing part 130 and the lower housing part 140 is a mat seal 180 made of an elastic material with through openings arranged. Contact chambers 160, 170 are provided both in the upper housing part 130 and in the lower housing part 140, through which cables and contact elements (in Fig. 1 not shown) inserted in the connector 100 and can be locked in place.
  • Fig. 2a shows a contact element 200 according to the prior art.
  • the contact element 200 has a housing 210 which extends along an insertion direction 280.
  • the contact element 200 can be produced in one piece as a stamped and bent part from a thin, for example metallic, sheet metal and is preferably electrically conductive.
  • the contact element 200 furthermore has a latching element 240 connected to the housing 210, which extends essentially counter to the insertion direction 280 and projects obliquely outwards from the housing 210.
  • the locking element 240 is fixed to a locking element root 230 on the housing 210.
  • the locking element root 230 can be an excellent point at which the transition from the housing 210 to the locking element 240 takes place. However, it can also be merely a virtual point about which the locking element 240 can be rotated or swung open, for example.
  • the latching element 240 can be elastically reversibly deflected inward along a spring-in direction 284 extending transversely to the insertion direction 280.
  • a lateral direction 286 extends transversely to the insertion direction 280 and transversely to the spring-up direction 284.
  • the contact element 200 is divided into a front contact section 212, in which the latching element 240 is arranged.
  • a central section 214 adjoins the contact section 212, which in turn is followed by a crimp section 216 in the rear part of the contact element 200.
  • an electrical cable not shown here, can be electrically conductively connected to the contact element 200.
  • the locking element 240 has a cantilevered end region 244.
  • the cantilevered end portion 244 is spaced from the housing 240 and has a first section 260 and a second section 270 connected to the first section 260.
  • the first section 260 extends obliquely outward from the housing in the exemplary embodiment shown (that is, without external force).
  • the second section 270 has a free end 274 and is bent inwards relative to the first section 260, ie the end face or the free end 274 of the second section essentially faces the housing 210.
  • the first section 260 and the second section 270 are both formed as essentially flat surfaces and enclose an angle ⁇ between them.
  • the second section can have a length in a range between 0.5 mm and 2.5 mm, for example.
  • the locking element 240 also has a further section 250, the further section 250 being arranged between the locking element root 230 and the first section 260.
  • the latching element 240 is essentially designed as a flat surface along its direction of extension 280, the latching element 240 having on its outer sides (with respect to the lateral direction 286) outer walls 242 which are bent inwards.
  • the contact element 200 is inserted into the contact chamber 170 in the lower housing part 140 of the connector 100.
  • the contact chamber 170 is delimited by a contact chamber wall 172.
  • a contact opening 171 is provided, through which a mating contact element, for example in the form of a plug pin or a contact knife, can be inserted into the contact section 212 of the contact element 200.
  • At least one, for example resilient, contact lamella (not shown here) with which the mating contact element is contacted electrically and mechanically can be arranged in the contact section 212 in the interior of the housing 210.
  • an open latching chamber 173 is provided in the contact chamber wall 172.
  • the latching element 240 When the contact element 200 is inserted, the latching element 240, which is sprung inward during the insertion process, can spring outward into the latching chamber 173.
  • the catch element When the contact element 200 is pulled against the direction of insertion 280, the catch element can be supported on a catch stop 175 of the catch chamber 173 designed as a kind of undercut and thus prevent the contact element 200 from unintentionally detaching from the contact chamber 170.
  • An unlocking tool for releasing the locking element 240 can also be inserted through the contact opening 171, for example.
  • Fig. 2b shows a situation in which the Fig. 2a shown contact element is applied, for example, by a pull on the cable against the insertion direction 280 with a force. If this force exceeds a certain minimum strength, then the locking element 240 can pivot outward about the locking element root 230.
  • the free end region 244 of the latching element 240 slides further and further upward along the latching stop 175 in the latching chamber 173.
  • the second section 270 is bent further and further towards the first section 260 with respect to the first section 260.
  • the angle between the first section 260 and the second section 270 decreases more and more (by ⁇ ). This is represented in the figure by the angle ⁇ - ⁇ .
  • ⁇ can be more than 10 °, more than 15 ° or even more than 25 °.
  • the second section 270 can thereby also be plastically deformed or bent with respect to the first section 260.
  • the torque acting on the latching element 240 in the pivoting direction increases on the one hand, since the lever arm between the point of engagement of the latching element 240 at the latching stop 175 (the point of engagement is located at one end 262 of the first section 260 an) and the locking element root 230 is getting bigger. With the same force, the locking element root 230 is exposed to an ever greater mechanical load due to the increased torque in this way.
  • the sliding process of the latching element 240 on the latching stop 175 is further supported by the second section 270, which is always approximately parallel to the latching stop 175. This is because the force exerted by the latching stop 175 on the latching element 240 is distributed over the mechanical contact surface over a large area, namely over the area of the second section 260. As a result, there is no punctiform or linear pressure between the latching element 240 and the latching stop 175 The latching element 240 can therefore only enter into a non-positive or positive connection to the latching stop 175, for example in the form of a crampon, in order to prevent further upward sliding.
  • the detent element 240 When a force is applied, the detent element 240 can be bent ever further upwards in a self-reinforcing process of increasing torque and decreasing surface pressure. Ultimately, this can lead to plastic deformation at the locking element root 230, and springing back inward when the force decreases is then no longer possible. If the force does not decrease, the locking element 240 may even break at the locking element root 230 come. Such behavior is particularly relevant in the case of an open latching chamber 173 or in latching chambers 173 which have very high or long chamber walls 172 or latching stops 175, on which the latching element 240 can slide upwards without hindrance.
  • FIG. 3a A contact element 200 according to the invention is shown.
  • the contact element 200 according to the invention has a support element 300 between the first section 260 and the second section 270, with which the second section 270 can be supported on the first section 260 when a force is exerted.
  • the lever arm when not under power Fig. 3a is designated R 0 . It extends along the spring-in direction 284 between the end 262 of the first section 260 and the catch element root 230.
  • the first section 260 and the second section 270 enclose the angle ⁇ , where ⁇ is in a range between 30 ° and 80 °, preferably between 45 ° and 75 °.
  • Fig. 3b is shown schematically how a conventional contact element 200a and an inventive contact element 200b behave under the action of force.
  • the conventional and the contact element 200a, 200b according to the invention are equally locked in the locking chamber 173.
  • the angle ⁇ is included between the first section 260 and the second section 270.
  • the latching element 240 also slides upward along the latching stop 175. Due to the support element 300, however, the angle ⁇ enclosed between the first section 260 and the second section 270 remains essentially constant. It can decrease by, for example, up to, for example, 5 ° (ie at most by 5 °), if between the first section 260 and the support element 300 or there is a small gap between the second section 270 and the support element 300 due to production. In this way, the force acts on the free end 274 of the second section 270 approximately at points or in a line.
  • the catch element 240 can engage with the free end 274 of the second section 270 in the catch stop 175.
  • the force is introduced into the locking element 240 with a length of the lever arm that is reduced compared to the conventional situation. This is because the force is no longer applied at the end 262 of the first section but at the level of the support element 300 or at the level of the free end 274 of the second section 270.
  • the conventional contact element 200a is thus pulled out of the contact chamber 170 with the same force (e.g. by pulling on the cable) significantly more than the contact element 200b according to the invention. This is represented by the position of the locking element root 230.
  • this force is preferably at least 30% higher than in the conventional contact element 200a, very particularly preferably by at least 60% higher.
  • the pull-out force in the conventional contact element 200a, in which the locking element 240 fails can e.g. are at least 15N, preferably at least 25N, very particularly preferably at least 40N.
  • Fig. 4 An embodiment of the contact element 200 according to the invention is shown.
  • the locking element 240 is essentially flat.
  • the Locking element 240 has in the insertion direction 280 on its outer sides (with respect to the lateral axis 286) inwardly bent side walls 242.
  • the end walls of the side walls face the housing 210.
  • the locking element 240 thus has a profile in the form of an inverted letter “U”.
  • the locking element 240 shown is preferably designed along the insertion direction 280, with the exception of the bent second section 270, without any noteworthy bends.
  • the first section 260 and the second section 270 are flat or planar. In cross section they essentially have the shape of a straight line.
  • the side walls 242 also extend in the first section 260. Here, however, they have cutouts 243 which face the second section 270.
  • the exemplary embodiment shown has two support elements 300 which are arranged in the first section 260 and are fixedly connected to the first section 260. The two support elements 300 protrude at the end of the side walls 242 facing the housing 210 in the first section 260 against the insertion direction 280 from the side walls 242 to the second section 270. They are finger-like. When viewed in the insertion direction 280, the two support elements 300 are completely covered by the second section 270 along the lateral direction 286.
  • this overlap prevents damage to the sealing mat 180 when the contact element 200 is removed by the support elements 300 protruding counter to the insertion direction 280 there may be a small gap between the second section 270 and free ends 302 of the support elements 300. This gap is closed when force is applied to the second section 270. However, such a gap is not mandatory are in direct mechanical contact with the second section 270.
  • the embodiment with two support elements 300 which support the outer ends of the second section 270 causes a particularly good support effect. For example, this prevents the second section 270 from folding down on one side.
  • the force acting on the second section 270 is also distributed particularly uniformly over a larger area, as a result of which damage to the second section by a high point load at the support points can be avoided.
  • the pull-out force that leads to damage can be increased by at least 30% with the two support elements 300 compared to a construction without a support element 300, depending on the configuration even by at least 60%.
  • FIG. 5a Another exemplary embodiment of the contact element 200 according to the invention is shown.
  • a single support element 300 with a free end 302 is provided.
  • the support element 300 is formed in the extension of one of the side walls 242 of the locking element 240.
  • a recess 243 is provided in each of the side walls 242 in the area of the first section 260.
  • the side wall 242 is pulled down a little more towards the housing 210.
  • the free end 274 of the second section 270 can introduce the force acting on the second section 270 at a particularly low point of the latching element 240. This advantageously reduces the length of the lever arm particularly strongly.
  • the stability of the latching element 240 is increased by the deeply downwardly drawn side wall 242, since in this way the area moment of inertia becomes particularly large.
  • a housing wall opposite the side wall 242 is provided in the housing 210 with a recess corresponding to the shape of the side wall 242.
  • the support element 300 is rounded at its free end 302 facing the second section 270. On the one hand, this prevents excessively selective force effects on the side of the second section 270 facing the support element 300. In addition, damage to the sealing mat 180 can also be avoided.
  • the pull-out force that leads to damage can be caused by the Support element 300 can be increased by at least 30% compared to a construction without a support element 300, depending on the configuration even by at least 60%.
  • the cantilevered end region 244 of the latching element 240 has the shape of a gripping left hand, the thumb corresponding to the support element 300, the two last finger links corresponding to the second section 270 and the back of the hand and that adjoining the back of the hand first phalange corresponds to the first section 260.
  • the self-supporting end region 244 of the locking element 240 has the shape of a gripping right hand.
  • the reinforced region of the side wall 242 or the pulled-down side wall 242 in the first section 260 corresponds to the root of the thumb in this schematic image.
  • Fig. 5b 14 is a view of the latch member 240 Fig. 5a shown from below.
  • the support element 300 which extends from the side wall 242 against the insertion direction 280 towards the second section 270, is slightly curved along the lateral axis 286 towards the center of the second section 270.
  • This advantageously has the effect that, when a force is exerted on the second section 270, this second section 270 cannot, for example on the outside (with respect to the lateral direction 286), bend relative to the first section 260 on which no support element 300 is arranged.
  • damage to the sealing mat 180 is reliably prevented by a laterally protruding support element 300.
  • Fig. 5c shows the contact element 200 according to the invention of FIG Figs. 5a and 5b in a state in which the contact element 200 is pulled along the direction of the arrow 282, that is to say counter to the insertion direction 280.
  • a force thus acts in the direction of the insertion direction 280 from the latching stop 175 towards the latching element 240.
  • the support element 300 prevents the second section 270 from bending relative to the first section 260. In this way, the length of the lever arm is reduced significantly from R 1 to R 1 - ⁇ R.
  • the force is introduced into the side wall (the "root of the thumb"), which is made stronger or leads downward, which is particularly stable due to this reinforcement.
  • the force is also linear or even introduced into the free end 274 of the second section 270 in a punctiform manner (namely at the point at which the support element 300 supports the second section 270).
  • the free end 274 can claw well into the material of the latching stop 175, as a result of which further movement of the latching element 240 within the latching chamber 173 upwards becomes more and more difficult with increasing punctiform loading.
  • Fig. 6 shows a further exemplary embodiment of the contact element 200 according to the invention.
  • the support element 300 is designed as a tab 290 projecting laterally from the second section 270 along the lateral direction 286, that is to say, for example, a thin, elongated piece of sheet metal.
  • the flap 290 is in turn bent over a short distance along the lateral axis 286 in the direction of the insertion direction 280 by approximately 90 ° to 135 °.
  • the tab 290 has a free tab end 294 facing away from the second section 270.
  • This tab end 294 is bent under the first section 260 and can support the second section 270 on the first section 260 in the event of a force being applied to the second section 270.
  • the second section 270 is supported via the tab 290 and the free tab end 294 on an inner side 264 of the first section 260 facing the housing 210.
  • the latching element 240 tapers from a first width w1 in the first section 260 to a second width w2 of the second section 270
  • the second section 270 in its transition area to the first section 260 along the lateral axis 286 is narrower than the locking element 240, for example in the further area 250, that is to say the second width w2 is smaller than the first width w1.
  • the tab 290 projecting from the second section 270 is bent in the direction of the insertion direction 280 such that a total width w3, which results from the second width w2 of the second section 270 and from the width of the non-bent section of the tab 290 along the lateral axis 286, is less than or at most equal to the first width w1.
  • the pull-out force which leads to damage, can be increased with the tab-like support element 300 by at least 30% compared to a construction without a support element 300, depending on the configuration even by at least 60%.
  • the embodiment shown is particularly easy to manufacture and enables a spring effect when force is applied to the second section 270 in a particularly simple manner.
  • the second section 270 can be spring-loaded against the tab 290 Inside 264 of the first section 260 are pressed.
  • the return of the second section 270 to its original position compared to the first section 260 is advantageously supported by the spring-like curvature of the tab 290.
  • Fig. 7 Another embodiment of the contact element according to the invention is shown in schematic form.
  • the tab 290 is not arranged laterally on the second section 270. Rather, the tab 290 is formed by bending the free end 274 of the second section 270.
  • the free end region 244 of the locking element 240 thus has a triangular shape, for example in the form of the Greek letter delta (“ ⁇ ”).
  • the second section 270 and the tab 290 can have the same width, as viewed along the lateral axis 286, as the first section 260 and the further section 250, respectively.
  • the pull-out force, which can lead to damage, with the support element 300 in the form of the Free end 274 of the tab 290 bent downwards can be increased by at least 30% compared to a construction without a support element 300, depending on the configuration even by at least 60%.
  • the proposed contact element 200 can generally be used for all contacts, mating contacts or connector arrangements, for example for socket contacts, in particular for multi-pole socket contacts (e.g. more than 50 or even more than 120 contact chambers per connector), for direct connectors or male connector contacts.
  • the proposed contact element 200 is particularly well suited for miniaturized socket contacts which have a sheet thickness in the area of the locking element 240 of e.g. 0.1mm to 0.3mm.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Claims (9)

  1. Elément de contact destiné à être inséré dans un sens d'insertion dans une chambre de contact d'un connecteur enfichable, l'élément de contact présentant :
    - un boîtier (210) s'étendant dans le sens d'insertion (280),
    - un élément d'enclenchement (240) relié au boîtier (210) pour s'enclencher dans la chambre de contact (160, 170) du connecteur enfichable (100),
    l'élément d'enclenchement (240) présentant une zone d'extrémité en porte-à-faux (244),
    la zone d'extrémité en porte-à-faux (244) présentant une première partie (260) et une deuxième partie (270) reliée à la première partie (260),
    la première partie (260) s'étendant dans le sens opposé au sens d'insertion (280) ou étant dirigée obliquement vers l'extérieur du boîtier (210) dans le sens opposé au sens d'insertion (280), la deuxième partie (270) étant pliée vers l'intérieur par rapport à la première partie (260),
    dans lequel, entre la première partie (260) et la deuxième partie (270), au moins un élément de soutien (300) est prévu qui soutient la deuxième partie (270) au niveau de la première partie (260) lorsqu'une force agit sur l'élément d'enclenchement (240),
    caractérisé en ce que
    dans une première variante, ledit au moins un élément de soutien (300) est relié à la première partie (260) et fait saillie de la première partie (260) dans le sens opposé au sens d'insertion (280) en direction de la deuxième partie (270), et/ou
    dans une deuxième variante, ledit au moins un élément de soutien (300) est relié à la deuxième partie (270) et fait saillie de la deuxième partie (270) dans le sens d'insertion (280) en direction de la première partie (260).
  2. Elément de contact selon la revendication 1, caractérisé en ce que la première partie (260) et la deuxième partie (270) forment un angle a, ledit au moins un élément de soutien (300) étant configuré de telle sorte que lorsqu'une force agit sur l'élément d'enclenchement (240), l'angle α peut être diminué de 5° au maximum, en particulier lorsqu'une force agit sur l'élément d'enclenchement (240) dans le sens opposé au sens d'insertion (280).
  3. Elément de contact selon la revendication 1 ou 2, caractérisé en ce que l'angle α formé par la première partie (260) et la deuxième partie (270) se situe dans une plage comprise entre 45° et 75°.
  4. Elément de contact selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit au moins un élément de soutien (300) est réalisé de manière intégrale avec l'élément d'enclenchement (240).
  5. Elément de contact selon l'une quelconque des revendications précédentes, comprenant la première variante selon la revendication 1, caractérisé en ce que l'élément d'enclenchement (240) est réalisé de manière substantiellement plane,
    l'élément d'enclenchement (240) présentant au moins une paroi latérale (242) pliée vers l'intérieur en direction du boîtier (210),
    ladite au moins une paroi latérale (242) présentant au moins un évidement (243) dans la première partie,
    ledit au moins un élément de soutien (300) étant disposé sur ladite au moins une paroi latérale (242),
    ledit au moins un élément de soutien (300) étant disposé en particulier au niveau dudit au moins un évidement (243).
  6. Elément de contact selon la revendication 5, caractérisé en ce que la deuxième partie (270) présente une extrémité libre (274) détournée de la première partie (260),
    ledit au moins un élément de soutien (300) étant disposé sur ladite au moins une paroi latérale (242) de telle sorte que lorsqu'une force, en particulier dans le sens d'insertion (280), est exercée sur l'élément d'enclenchement (240), la deuxième partie (270) prend appui par son extrémité libre (274) sur ledit au moins un élément de soutien (300).
  7. Elément de contact selon l'une quelconque des revendications précédentes, comprenant la deuxième variante selon la revendication 1, caractérisé en ce que ledit au moins un élément de soutien (300) est réalisé comme au moins une patte (290) faisant saillie latéralement de la deuxième partie (270) transversalement au sens d'insertion (280), ladite au moins une patte (290) étant repliée au moins par endroits en direction du sens d'insertion (280), en particulier repliée sur 90° à 135°.
  8. Elément de contact selon la revendication 7, caractérisé en ce que ladite au moins une patte (290) présente une extrémité de patte libre (294), dans lequel, lorsqu'une force, en particulier dans le sens d'insertion (280), est exercée sur l'élément d'enclenchement (240), l'extrémité de patte libre (294) prend appui sur une face intérieure (264) de la première partie (260), tournée vers le boîtier (210).
  9. Elément de contact selon la revendication 7 ou 8, caractérisé en ce que l'élément d'enclenchement (240) présente une partie supplémentaire (250) d'une première largeur w1 dans un sens latéral (286) transversalement au sens d'insertion (280),
    la première partie (260) étant disposée entre la partie supplémentaire (250) et la deuxième partie (270),
    la première partie (260) s'amincissant en direction de la deuxième partie (270) de la première largeur w1 à une deuxième largeur w2 de la deuxième partie (270),
    la deuxième partie (270) et la patte (290) présentant une largeur totale w3 dans le sens latéral (286) qui est inférieure ou égale à la première largeur w1.
EP15744585.9A 2014-08-25 2015-07-31 Connecteur électrique Active EP3186858B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014216864.3A DE102014216864B4 (de) 2014-08-25 2014-08-25 Kontaktelement
PCT/EP2015/067625 WO2016030129A1 (fr) 2014-08-25 2015-07-31 Élément de contact

Publications (2)

Publication Number Publication Date
EP3186858A1 EP3186858A1 (fr) 2017-07-05
EP3186858B1 true EP3186858B1 (fr) 2020-07-22

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ID=53762195

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Application Number Title Priority Date Filing Date
EP15744585.9A Active EP3186858B1 (fr) 2014-08-25 2015-07-31 Connecteur électrique

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US (1) US9859644B2 (fr)
EP (1) EP3186858B1 (fr)
CN (1) CN106663891B (fr)
DE (1) DE102014216864B4 (fr)
WO (1) WO2016030129A1 (fr)

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DE102016104828A1 (de) * 2016-03-16 2017-09-21 Te Connectivity Germany Gmbh Elektrische Kontaktvorrichtung, elektrische Kontakteinrichtung sowie elektrischer Verbinder
DE102016204735B4 (de) * 2016-03-22 2017-11-16 Robert Bosch Gmbh Verfahren zum Entriegeln eines Kontakts mit länglichem Gehäuse und länglicher Primärlanze sowie Kontakt für Steckverbinder mit zur Demontage plastisch verformbarer Primärlanze
DE102017220015A1 (de) 2017-11-10 2019-05-16 Robert Bosch Gmbh Kontaktelement
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US11626671B2 (en) 2019-08-29 2023-04-11 J.S.T. Corporation Electrical male terminal
DE102021100806A1 (de) * 2021-01-15 2022-07-21 Te Connectivity Germany Gmbh Kontakteinrichtung und Verfahren zur Herstellung der Kontakteinrichtung

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Also Published As

Publication number Publication date
DE102014216864B4 (de) 2017-05-11
US9859644B2 (en) 2018-01-02
EP3186858A1 (fr) 2017-07-05
WO2016030129A1 (fr) 2016-03-03
DE102014216864A1 (de) 2016-02-25
CN106663891B (zh) 2019-04-30
CN106663891A (zh) 2017-05-10
US20170271803A1 (en) 2017-09-21

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